11923670971 has 16 divisors (see below), whose sum is σ = 12669640704. Its totient is φ = 11198525184.

The previous prime is 11923670929. The next prime is 11923671041. The reversal of 11923670971 is 17907632911.

It is a cyclic number.

It is not a de Polignac number, because 11923670971 - 2⁹ = 11923670459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11923677971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262296 + ... + 304378.

It is an arithmetic number, because the mean of its divisors is an integer number (791852544).

Almost surely, 2^11923670971 is an apocalyptic number.

11923670971 is a deficient number, since it is larger than the sum of its proper divisors (745969733).

11923670971 is a wasteful number, since it uses less digits than its factorization.

11923670971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42330.

The product of its (nonzero) digits is 142884, while the sum is 46.

The spelling of 11923670971 in words is "eleven billion, nine hundred twenty-three million, six hundred seventy thousand, nine hundred seventy-one".